Talking about the sun ... We got a variant of those credit card sized NFC cards to check in to public transit, the issuer decided that they should have an expiry date. From what I remember reading in local tech news, the logic was that people bend/break them over time, making them have a measurable lifespan.

My card actually expired in the middle of the countryside, and phone support just told me to get a replacement in the nearest convenience store.

I could have been prepared for this if I had checked the expiry date and put it in my calendar, but how many people do this?

btw, apologies for typos in my post above, it went quick, and was typed on touch screen.